nZEB Design in Buildings

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nZEB ( Nearly Zero Energy Building standard) is the European Energy Performance of Buildings Directive Recast 2010 (EPBD). It requires all new buildings to be nearly Zero Energy Buildings (nZEB) by 31st December 2020 and all buildings acquired by public bodies by 31st December 2018. This standard is now being applied to all relevant building designs and requires buildings designers and owners to achieve 20% of their primary energy needs from renewable sources on site or nearby. Callaghan Engineering have undertaken nZEB design on 5 school projects over the past 3 months to bring the already completed designs up to the required Part L of the building regulations 2017 for buildings other than dwellings. Central to the design process is the development of a new thermal model to test that with improved design elements for insulation u-values, airtightness, thermal bridging,  glazing and using 10% renewable energy contribution we are achieving the necessary reduction in energy demand compared to a similar building prior to nZEB (reference building). With the design teams , Callaghan Engineering achieved the necessary nZEB changes through the use of photovoltaic cells on the roof and improved u-values in walls, glazing, floors and roof.

Bray Primary Care Centre

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Callaghan Engineering were appointed in 2013, as the Mechanical and Electrical designers for the new Primary Care Centre in Bray, Co. Wicklow.  Following a protracted planning phase the construction is now well underway with the start of the mechanical and electrical services being installed within the building. The building will house several medical clinics on completion including GP, mental health, occupational therapy, physiotherapy and dental. An ‘A’ rating has been achieved in design for the BER building energy rating. Some of the mechanical and electrical features incorporated into the design include air source heat-pumps, rainwater harvesting and LED controlled lights.

An ‘A’ rating has been achieved in design for the BER building energy rating. Some of the mechanical and electrical features incorporated into the design include air source heat-pumps, rainwater harvesting and LED controlled lights.

With multiple tenants, including a pharmacy and cafe, an elaborate security and access control system is in place to manage the movement of staff and customers throughout. The construction will be completed towards the end of 2019.


Holy Spirit School, Kilkenny

Major pharma and medtech project wins for Callaghan Engineering

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Callaghan Engineering continue to standout as one of Ireland’s leading process engineering consultancies having had significant recent wins in both  pharma and medtech sectors in 2018 and into 2019.

Pharma Milling

Callaghan Engineering are project managers and lead designers for a substantial milling and dispensing upgrade project incorporating very high technology containment techniques. This project is taking place within an existing manufacturing facility and will require close coordination between all stakeholders to minimise disruption to existing operations during installation. The drug in manufacture is a statin medication used to prevent cardiovascular disease in those at high risk and treat abnormal lipid levels. This project is being delivered in the Munster region for a confidential client – value €2.2m.

Filter Media

This project encompasses a new building on an existing site for the manufacture of filter media for filter cartridges used throughout industry. The new building will contain cleanroom manufacturing facilities together with plantroom, and connections to existing utilities, and also the on-site thermal oxidiser. The project involves refurbishment of some existing processing facilities. It is located in the Munster region and will be delivered in 2019/20, and is valued at approximately €30m. Callaghan Engineering are the process, mechanical and electrical engineering designers for the project. This will also include leading compliance issues and conducting HAZOP reviews.

Diagnostics Solutions

A major expansion of an existing diagnostics manufacturing facility is currently underway in the Midlands area and is scheduled to be completed in 2019. The project involves a significant extension to the existing facility and includes process tanks, cleanroom facility, and 4 vial filling lines (Argon inerting) with a capacity for 1 million vials/year. The overall investment is approximately €20m. Callaghan engineering have led the mechanical and electrical engineering design and some elements of the process engineering.

Clifden Community School

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Clifden Community School

Callaghan Engineering were responsible for the M&E Design from concept stage to building completion.   The post primary school is a two-storey and part 3-storey L-shaped building with a floor area of 3852 square metres located on this spectacular sloping site outside Clifden town.  Works also included the demolition of the existing school building and associated pre-fabricated classroom structures once the new school was fully operational. One of the main challenges for this project was that the existing school building had to be kept operational while the new school was built on the same site. The building was completed on time and within budget and will cater for 425 pupils and 38 staff.

New Cork Office Opens

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We are delighted to announce the expansion of our operations in Cork with the opening of a new larger office based in Cork Airport Business Park.


Our new office location enables us to build upon and enhance the local support we provide to all our customers, ensuring that Callaghan Engineering continues to provide the best and most efficient service possible.


Speaking at the opening, Donal O’Callaghan, Managing Director of Callaghan Engineering said;


“It is now 25 years since we first established our office in Cork. In that time we have been able to develop and build long term business relationships with a number of our clients locally which has been a key part of our business for over two decades now.


I am delighted to open our newly expanded office which will further improve our ability to deliver the consistent quality, personal service and attention to detail that our clients have come to expect.


I am also very proud of what we as an organisation have been able to achieve and delighted to be in a position to further grow and develop the business not just here in Cork, but throughout the region and indeed the country.”


Cork native Fergus Cawley, Director of Electrical Engineering and Control Systems for Callaghan Engineering will head up the new office. Speaking at the opening Fergus said;


“The decision to open a new bigger office in this region builds upon our strategic plans for continued growth and development.  We are now better positioned to support our clients, new and existing, not just here in Cork but throughout the entire Southern region and beyond.


Our team has a proven track record in delivering successful outcomes for our clients across a range of industry sectors and I look forward to welcoming our clients, current and future, to our new office.”


Callaghan Engineering has successfully delivered numerous projects in Cork and surrounding areas, continuously building on an already strong portfolio across a range sectors as diverse as bio-pharmaceuticals, medical devices, datacentre, food & beverages and tourisim and leisure

For details of our new office location see:

New career opportunities with Callaghan Engineering

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Callaghan engineering header image

Callaghan Engineering is delighted to offer new opportunities for talented individuals to join our existing teams in both Dublin and Cork. We’re looking for people with excellent analytical and communication skills to join a well established organisation with a proven track record in delivering high quality projects.

As one of Ireland’s leading Consulting Engineering firms we provide multi-discipline professional engineering design, validation, procurement, project and construction management services. The firm  has successfully undertaken projects in the Biopharmaceutical, Medical Devices, Data Centre, Healthcare, Cosmetics, Food & Beverages, Industrial, Commercial, Educational, Government Agencies, and Tourism and Leisure Markets.

Successful candidates will therefore find themselves exposed to a wide range of engineering challenges across multiple industry sectors but with the backing and leadership of a highly experienced and dedicated team of professionals. Within Callaghan Engineering quality of staff resources is paramount. The development of the company has been based on the two fundamental concepts of attracting high calibre staff & using modern technology.

In addition to highly competitive remuneration packages, all of the above positions offer a range of benefits and incentives including CPD support, flexible working time and time in lieu.

To apply for any of our vacancies simply e-mail with a current CV and with a brief covering letter.

Callaghan Engineering is an equal opportunities employer.

Season’s Greetings

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Callaghan Engineering would like to take this opportunity to wish all our Clients, Suppliers and Friends a very Happy Christmas and a peaceful and prosperous New Year.

Our offices will close for the Christmas break on Thursday 21st December at 5.30pm and will reopen on Tuesday 2nd January 2018 at 8.30am.

Thank you for your continued business throughout 2017 and we look forward to serving you in 2018 and beyond.


All at Callaghan Engineering

Schools Bundle 5 PPP

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Callaghan Engineering were appointed by Carillion as mechanical and electrical design engineers for Bray Primary and Post-Primary schools and Wexford Post Primary schools which form part of Schools Bundle 5 PPP. The project was fully designed in BIM driving an integrated and fully co-ordinated design between all disciplines and is valued at €32 million. The schools are reaching the end of construction and will be completed before year end 2017. All schools have a BER rating of A2 and incorporate renewable technologies such as photovoltaic cells, rainwater harvesting and LED lighting throughout.

The M&E design scope included the following systems: LV power distribution, vertical transport, control systems, general services, lighting & emergency lighting, fire alarm, security systems/CCTV, hearing enhancement, lightning protection, ICT/Wi-Fi, audio visual, digital signage, public address, water services, heating services, ventilation, gas, energy usage modelling, and BER.

Bray Post Primary & Primary Schools

Wexford Post Primary School

Spike Island Named Europe’s Leading Tourist Attraction by the World Travel Awards 2017!

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spike island

Spike Island has been named Europe’s Leading Tourist Attraction by the World Travel Awards 2017.  The island was originally a monastery before housing Fort Mitchel and its famous prison, the largest in Britain’s history. Although Spike Island has over 1,300 years of history, it has only been a tourist attraction for the last three years. This highlights Spike Island’s amazing accomplishment at winning Europe’s Leading Tourist Attraction, beating famous competitors like the Eiffel Tower, Buckingham Palace, and the Colosseum.

Callaghan Engineering were commissioned as the Mechanical and Electrical Design Team for this major tourism and heritage project initiated by Cork County Council. The project involved working closely with the Interpretive/Exhibition Design Team to realise this important historical site’s potential by renovating several buildings into a museum and interpretive centres with authentically retold guided tours, bathrooms, a cafe, and a gift shop.  We are proud to be a part of Spike Island’s ongoing history.